FIELD: machine building.
SUBSTANCE: helical rotor pump consists of stator, of rotor in form of one start screw, round cross section of which is set off relative to rotation axis of screw at value of concentricity. One or several hoses are placed in a channel of the stator; the hoses enter recesses made in the cylinder channel of the stator with a profile in form of an arc of circumference and of sections of straight lines from ends of arc to the cylinder channel. The recesses in the channel are made along spiral line; direction of coils of the channel is opposite to direction of coils on rotor surface. Recesses along spiral line where coils are directed opposite to direction of coils on rotor in the helical rotor pump eliminate contact of pumped-over medium with pump components.
EFFECT: high pressure without change of dimensions and velocity of rotor revolution.
3 dwg
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|---|---|---|---|
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RU2247263C2 |
